Briefcase



1. Briefcase

1.1 is a front view of the briefcase showing my new design;

1.2 is a rear view thereof in an unfolded condition of use;

1.3 is a front view thereof;

1.4 is a top view of 1.1, shown in a folded condition of use;

1.5 is bottom rear perspective view thereof;

1.6 is a rear view thereof; and

1.7 is left side perspective view thereof.

The dark background disclosed in all figures forms no part of the claimed design. 

CLAIM Ornamental design for a briefcase, as shown and described. 